CAJ | 학술논문

在计算机网络中，为了保证数据的保密性和可靠性，需要对数据进行加密与解密。本文先介绍了Hill密码算法，指出Hill密码密钥矩阵即剩余阵的逆矩阵存在的充要条件，最后较详细讨论了求剩余阵的逆矩阵的算法及其Matlab程序，从而可通过Hill密码对信息进行快速加密与解密，实现用户信息安全保护。
재계산궤망락중，위료보증수거적보밀성화가고성，수요대수거진행가밀여해밀。본문선개소료Hill밀마산법，지출Hill밀마밀약구진즉잉여진적역구진존재적충요조건，최후교상세토론료구잉여진적역구진적산법급기Matlab정서，종이가통과Hill밀마대신식진행쾌속가밀여해밀，실현용호신식안전보호。
In computer networks, in order to guarantee the confidentiality and reliability of the data, need to encrypt and de?crypt data. This paper first introduces the Hill cipher algorithm, once pointed out that Hill password key matrix is a suffi?cient and necessary condition for the existence of residual matrix inverse matrix, and finally discusses the detail of residual matrix inverse matrix algorithm and Matlab, which can be through the Hill password to fast encryption and decryption of in?formation, realize the user information security protection.